document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=23661>Question 23661</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the answer for these problems. Iam having diffcult with just these, please show work and use sub. or eilm. thanks.<BR>\n" );
document.write( "1. x-9y=237<BR>\n" );
document.write( "  5x+3y=-267\r<BR>\n" );
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document.write( "2. x-4y=119<BR>\n" );
document.write( "   16y--432\r<BR>\n" );
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document.write( "3. 4x+5y=1<BR>\n" );
document.write( "  14x+5y=191\r<BR>\n" );
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document.write( "4. 8x+y=74<BR>\n" );
document.write( "   3x+19y=363\r<BR>\n" );
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document.write( "5.9x+17y=-475<BR>\n" );
document.write( "  7x+11y=-285\r<BR>\n" );
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document.write( "6. 9x+13y=536<BR>\n" );
document.write( "   9x+16y=587\r<BR>\n" );
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document.write( "7. 10x-y+-145<BR>\n" );
document.write( "   13x+3y=-339\r<BR>\n" );
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document.write( "8. 17x-8y+=154<BR>\n" );
document.write( "   17x-12y+=150\r<BR>\n" );
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document.write( "9. 11x-4y=364<BR>\n" );
document.write( "   2x-19y=322\r<BR>\n" );
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document.write( "10. x+2y=47<BR>\n" );
document.write( "      x-3y=7\r<BR>\n" );
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document.write( "11. 3x-4y=-198<BR>\n" );
document.write( "      x-3y=-111\r<BR>\n" );
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document.write( "12. 12x+13y=491<BR>\n" );
document.write( "     12x+19y=629<BR>\n" );
document.write( "  \r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #12478 by </B><A HREF=/tutors/aboutme.mpl?userid=elima><B>elima(1433)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=elima><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=12478\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I will solve two problems, one with substitution and one with elimination.\r<BR>\n" );
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document.write( "1)x-9y=237<BR>\n" );
document.write( "5x+3y=-267 <BR>\n" );
document.write( "Substitution;<BR>\n" );
document.write( "First of all solve one of the eq. for one of the variables; We will solve the first one for x;<BR>\n" );
document.write( "x-9y=237<BR>\n" );
document.write( "x=237+9y<BR>\n" );
document.write( "Now substitute that for x in the other eq.<BR>\n" );
document.write( "5(237+9y)+3y=-267<BR>\n" );
document.write( "1185+45y+3y=-267<BR>\n" );
document.write( "48y=-267-1185<BR>\n" );
document.write( "48y=-1452<BR>\n" );
document.write( "y=-30 1/4<BR>\n" );
document.write( "Now that we have y  plug that answer into one eq. and solve for x;<BR>\n" );
document.write( "5x+3(-30 1/4)=-267<BR>\n" );
document.write( "5x-90 3/4=-267<BR>\n" );
document.write( "5x=176 1/4<BR>\n" );
document.write( "x=35 1/4<BR>\n" );
document.write( "So;<BR>\n" );
document.write( "x=35.25<BR>\n" );
document.write( "y=-30.25 <BR>\n" );
document.write( "Now we will solve this by elimination;<BR>\n" );
document.write( "3)4x+5y=1<BR>\n" );
document.write( "14x+5y=191 <BR>\n" );
document.write( "First of all we need to multiply eq.2 by -1;<BR>\n" );
document.write( "(-1)14x+5y=191<BR>\n" );
document.write( "-14x-5y=-191<BR>\n" );
document.write( "Now we will add eq.1 and eq.2 together;<BR>\n" );
document.write( "4x+5y=1<BR>\n" );
document.write( "-14x-5y=-191<BR>\n" );
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document.write( "-10x=-190<BR>\n" );
document.write( "x=19<BR>\n" );
document.write( "Now we have x, so plug that into one of the eq. to get y;<BR>\n" );
document.write( "4(19)+5y=1<BR>\n" );
document.write( "76+5y=1<BR>\n" );
document.write( "5y=-75<BR>\n" );
document.write( "y=-15<BR>\n" );
document.write( "So ;<BR>\n" );
document.write( "x=19<BR>\n" );
document.write( "y=-15<BR>\n" );
document.write( "Try and work out the others by yourself. If you have trouble let me know.<BR>\n" );
document.write( "=)<BR>\n" );
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